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NGC 1501

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NGC 1501
Emission nebula
Planetary nebula
As seen from the Hubble Space Telescope
Observation data: J2000 epoch
Right ascension04h 06m 59.39s[1]
Declination+60° 55′ 14.4″[1]
Distanceest. 4,240 ly (1.30 kpc)[2] ly
Apparent magnitude (V)13.0[1]
Apparent dimensions (V)0.863' (diameter)
ConstellationCamelopardalis
DesignationsPK 144+6.1, PN G 144.5+06.5, GC 801, CS 14.4, H 4.53
See also: Lists of nebulae
The location of NGC 1502 (circled in red)
NGC 1501 from the 0.8m Schulman Telescope at the Mount Lemmon SkyCenter


NGC 1501 is a complex planetary nebula located in the constellation of Camelopardalis, discovered in 1787 by William Herschel.[2][3] It is also known as the Oyster Nebula.[4] Its central star is a pulsating star, meaning that its brightness varies regularly and periodically. In the case of NGC 1501's progenitor star, this is incredibly fast, with the star's brightness changing significantly in just half an hour. An analysis of Gaia data suggests that the central star is a binary system.[5] Visible-light observations capture the glow of gases including hydrogen and nitrogen.[6]

References

  1. ^ a b c "SIMBAD Astronomical Database". NGC 1501. Retrieved 2014-11-09.
  2. ^ a b Sabbadin, F.; Benetti, S.; Cappellaro, E.; Turatto, M. (2000). "The tetra-lobed planetary nebula NGC 1501". Astronomy and Astrophysics. 361: 1112–1120. arXiv:astro-ph/0007039. Bibcode:2000A&A...361.1112S.
  3. ^ Seligman, Courtney. "Celestial Atlas: NGC Objects: NGC 1500 - 1549". cseligman.com. Archived from the original on 10 July 2015. Retrieved 10 July 2015.
  4. ^ "Hubble View of Bubbly Nebula". Retrieved 8 December 2016.
  5. ^ Chornay, N.; Walton, N. A.; Jones, D.; Boffin, H. M. J.; Rejkuba, M.; Wesson, R. (2021). "Towards a more complete sample of binary central stars of planetary nebulae with Gaia". Astronomy & Astrophysics. 648: A95. arXiv:2101.01800. Bibcode:2021A&A...648A..95C. doi:10.1051/0004-6361/202140288. S2CID 230770301.
  6. ^ "Oyster Nebula NGC 1501 As Seen By Hubble - SpaceRef". spaceref.com. Retrieved 2021-02-08.


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